Grain-binder



'(No Model.)

M .v G.HUBBARD, Jr. Grain Binder.

Patented `M arcl h,1,5 ,1881.

N. PUEDE, PHOTO-LITNOQRAPND1 WASHINGLON. D. C.

UNITED STATES PATENT OFFICE..

MOSES G. HUBBARD, JR., OF NORRISTOWN, PENNSYLVANIA.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 238,904, dated March15, 1881.

Application filed June 8, 1880. (No model.)

To all whom it may concern:

Be it known that I, Mosns G. HUBBARD, Jr., of the city of Norristown, inthe county of Montgomery and State of Pennsylvania, have invented anImprovement in Grain-Binders, of which the following is a specification.

Myinvention relates to grain-binders in general, but more particularlyto that class of machines known as the gleaner and binder, asmanufactured by the Gleaner and Binders Association of Norristown,Pennsylvania; and it consists in certain changes in the construction ofwire binders heretofore used, so as to operate in a more effectivemanner, all of which construction and operation is fully set forth inthe following speciiication,shown in the accompanying drawings, andreferred to in the appended claims.

In the drawings, Figurel is a section of the rack-segment andbinder-shaft on the line z z, Fig. 3, and shows the binder-head inelevation. Fig. 2 is a section of the rack-segment 011 line z z, Fig. 3,looking at the other side. Fig. 3 is a section of same on line w, Fig.l. Fig. 4 is a section of the binder-head, showing knife and pinion inposition for twisting. Fig. 5 is a similar section to that shown in Fig.4, only in this case the knife is in a position to sever the wire. Fig.6 is a cross-section of Fig. 4 on line o o. Fig. 7 is a cross-section ofFig. 5 on line y y, and also a cross-section of the rack-segment.

A is the binder-head shaft, which is supported in brackets from the mainsill or frame D', and is rotated by any suitable means, passing the headB through the segment C, having a single gear-rack, D, on one side torotate the slotted twister-pinion F, which at all other times is held inproper position by the spring-pawl K, and is released when said paw] Kstrikes the curved edge d ofthe gear-rack D. During the revolution ofthe binder-head B about its shaft A the slot j' in the twisterpinion Fismade to face the slot bin the binder-head.

Heretofore the binder-head usually had two slotted twister wheels orpinions, both of which twisted the wire, and one of which, having anextra tur-n, caused the wire to be severed.`

When two pinions are used it is necessary to have` two spring-pawls andtwo racks inthe segment.

Now, with :m y improved construction I dispense with one of the slottedtwister-pinions,

and in lien thereof I substitute a knife orcutter, H, provided with acutting-edge, I, and inclined or oblique edges hA h2, which, by means`of the spring J, is held stationary at some diswithout any movement ofthe knife, the wire is gradually and easily cut or severed. This iseffected by the slot f in the twister-pinion F being made a littlelessthan the semi-diameter of the pinion, and the end ofthe cuttingedge I ofthe knife H being brought over, or nearly over, the center of thepinion, as shown in Fig. 5 of the drawings. After the end of the knifeor cutter passes the cam E the spring J will cause the knife or cutter Hto move back into its original position; but for greater certainty Ilocate the slot E on the side of the segment C, and while it allowslateral movement due to spring J, its beveled edge or cam c will forcethe knife or cutter back into position should it be obstructed by anyforeign inatter like `gum or dirt or a pin from the end of the severedwire, or in any case where the spring Jis inefficient. The camslot lF/is furnished with beveled edges or cams c and c. Bythis arrangement of asingle gearrack, D, a single slotted twister-pinion, F, a stationaryknife or cutter, H, the cam E, and spring J, I am enabled to dispensewith an entire gear-rack, one twister-piniolzi, and its spring-pawl, andat the same time attain a much more simple and effective vdevice fortwisting and cutting the wire, which makes a longer and stronger twistin the same space and cuts the wire more gradually and easily.

To obtain the most perfect shearing cut the knife or cutter should beshaped as shown in Figs. 4 and 5, in which the curve forming thecutting-edge I gradually approaches the center of the twister-pinion,and the cam E should be so located to slide the knife or cutter H intoposition that the Wire will be cut on the second quarter of the lastrevolution of the twist- IOC) er-pinion. The Wire is brought in contactwith the curved cutting-edge I of the knife, and by the resistance ofthe gear-rack the greatest possible perfection of cut is made.

5 The movement of the knife or cutter maybe restricted by the projectionor pin g and slot h in the knife.

The Wire to bind the gavel or bundle passes from the rear spool throughthe slot c in the 1o segment C to the front spool in the ordinary Way.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a Wire-twister for a grain-binder, the combination of the singleslotted twister-pinion With its movable knife or cutter, havingrectilinear reciprocation, and held stationary VWhile cutting the Wire,substantially as and zo for the purpose specified.

2. In a binder for grain, the combination of the segment C, providedWith a single rack,

D, land cam E, head B, carrying the slotted pinion F, cutter H, havin grectilinear reciproeating motion, and spring J, substantially as 25 andfor the purpose described.

3. In a binder for grain, the slotted twisterpinion F, in combinationwith the cutter H, having rectilinear reciprocating motion, and springJ, substantially as and for the purpose speciied.

4. In a binder for grain, the combination of cutter H, havingcutting-edge I and beveled edges h h2, with segment G, provided on oneside with the cam-projection E and on the opposite side the slot E having beveled edge e', substantially as described.

In testimony of which invention I hereunto A set my hand.

M. e. HUBBARD, JR.

Witnesses:

HENRY R. BROWN, WALTER S. JENNINGs.

